hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

praeclarum

using System;
using System.Runtime.InteropServices;

namespace Circuit
{
    public static class Dsp
	{
		class FftSetupD : IDisposable
		{
			public IntPtr Handle;

praeclarum

/// Markov chain that learns by observing data.
/// Let it observe a sequence of states.
/// Then you can ask it, given a state,
/// what are the probabilities of the next states occuring?
/// This chain can remember history to make better predictions.
type MarkovChain (numStates : int, memory : int) =

    let numPrevious = 1 + memory

    let matrixSize = int (System.Math.Pow (float numStates, float numPrevious))

kristopherjohnson

import Foundation

let notified = dispatch_semaphore_create(0)

let group = dispatch_group_create()
let queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)

for n in 0..<20 {
    dispatch_group_async(group, queue) {
        let timeInterval = Double(arc4random_uniform(1000)) * 0.01

NicoVermeir

using System;
using System.Collections;
using System.Collections.Specialized;
using System.Linq;
using Xamarin.Forms;

namespace WrapPanelDemo.Controls
{
    public class AwesomeWrappanel : Layout<View>
    {

ChaseFlorell

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Input;
using Xamarin.Forms;

namespace TimeTracker.Controls
{
    public class GridView : Grid

georgejecook

using System;

using Xamarin.Forms;

namespace TwinEvents.Core.Media.View
{
	public class FastCell : ViewCell
	{
	}
}

robert-waggott

module.exports = function(grunt) {

	grunt.initConfig({
		adminPassword: '',
		
		solution: '',
		
		versionNumber: grunt.option('versionNumber'),

		buildAgent: grunt.option('buildAgent'),

vwart

//usage:

		// ContactGrid is the x:Name of the Grid within the ScrollView
		protected override void OnAppearing()
		{
			base.OnAppearing();
			ContactGrid.LayoutStars(((float)App.INSTANCE.Resources["PageHeight"]));
		}
    
//In your MainActivity:

praeclarum

using System;
using System.Collections.Generic;

namespace Praeclarum
{
    /// <summary>
    /// The type of <see cref="ListDiffAction{S,D}"/>.
    /// </summary>
    public enum ListDiffActionType
    {